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| author | Johannes Berg <johannes@sipsolutions.net> | 2007-07-18 15:47:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-07-18 15:47:52 -0700 |
| commit | 2dbba6f773d1e1e4c78f03b0dbf19790d9017693 (patch) | |
| tree | 19535af46e79a0af756275f751d7b0080b72001d /include/net/genetlink.h | |
| parent | 84659eb529b33572bb3f8c94e0978bd5d084bc7e (diff) | |
| download | lwn-2dbba6f773d1e1e4c78f03b0dbf19790d9017693.tar.gz lwn-2dbba6f773d1e1e4c78f03b0dbf19790d9017693.zip | |
[GENETLINK]: Dynamic multicast groups.
Introduce API to dynamically register and unregister multicast groups.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Patrick McHardy <kaber@trash.net>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/genetlink.h')
| -rw-r--r-- | include/net/genetlink.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h index b6eaca122db8..decdda546829 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -5,6 +5,22 @@ #include <net/netlink.h> /** + * struct genl_multicast_group - generic netlink multicast group + * @name: name of the multicast group, names are per-family + * @id: multicast group ID, assigned by the core, to use with + * genlmsg_multicast(). + * @list: list entry for linking + * @family: pointer to family, need not be set before registering + */ +struct genl_multicast_group +{ + struct genl_family *family; /* private */ + struct list_head list; /* private */ + char name[GENL_NAMSIZ]; + u32 id; +}; + +/** * struct genl_family - generic netlink family * @id: protocol family idenfitier * @hdrsize: length of user specific header in bytes @@ -14,6 +30,7 @@ * @attrbuf: buffer to store parsed attributes * @ops_list: list of all assigned operations * @family_list: family list + * @mcast_groups: multicast groups list */ struct genl_family { @@ -25,6 +42,7 @@ struct genl_family struct nlattr ** attrbuf; /* private */ struct list_head ops_list; /* private */ struct list_head family_list; /* private */ + struct list_head mcast_groups; /* private */ }; /** @@ -73,6 +91,10 @@ extern int genl_register_family(struct genl_family *family); extern int genl_unregister_family(struct genl_family *family); extern int genl_register_ops(struct genl_family *, struct genl_ops *ops); extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops); +extern int genl_register_mc_group(struct genl_family *family, + struct genl_multicast_group *grp); +extern void genl_unregister_mc_group(struct genl_family *family, + struct genl_multicast_group *grp); extern struct sock *genl_sock; |